Currently, Rafael Nadal has won more head-to-head matchups against Roger Federer and only sits one grand slam title behind the Swiss international. Can we finally say that Rafael Nadal is the greatest tennis player of all time? SI Now's Amy Campbell and Robin Lundberg weigh in.
Could Djokovic unseat Federer, Nadal atop U.S. Open?
Rafael Nadal and Roger Federer enter the U.S. Open atop the tennis rankings, but Novak Djokovic is looking strong following his Wimbledon title.